NUMERICAL SIMULATION OF THREE DIMENSIONAL BUBBLE GROWTH AND DETACHMENT IN A MICROGRAVITY SHEAR FLOW

Takahira, Hiroyuki; Banerjee, Sanjoy

Microgravity Fluid Physics & Heat Transfer

ISBN 印刷: 978-1-56700-147-1

ISBN オンライン: 978-1-56700-444-1

NUMERICAL SIMULATION OF THREE DIMENSIONAL BUBBLE GROWTH AND DETACHMENT IN A MICROGRAVITY SHEAR FLOW

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Hiroyuki Takahira Osaka Metropolitan University

Sanjoy Banerjee Department of Chemical Engineering University of California at Santa Barbara, Santa Barbara, California, 93106

要約

In this study, we have developed the threedimensional two-phase flow code with unequal spacing taking into account of gravity and surface tension effects, as well. The level set method is used to capture the liquid-gas interface. The bubble growth and detachment in a micro gravity shear flow are simulated using the present code. The gas is injected through a small opening into liquid. We have succeeded in simulating a bubble detachment. The results are compared with experimental data and are qualitatively in good agreement with experimental data. The bubble growth and detachment are significantly affected by the gravity and surface tension.

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